Life Span
Perennial
Perennial
Type
Flowering Plants
Broadleaf Evergreen
Origin
Southwestern United States, California
-
Types
-
Rhododendron, Azalea indica, Azalea japonica
Number of Varieties
4010
0
40000
👆🏻
Habitat
Dry areas, meadows
Forests
USDA Hardiness Zone
4-98-11
0
99
👆🏻
AHS Heat Zone
9-1
-
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 7, 8, 9, 10, 11, 12, 13, 18, 19, 20, 21
21,22
Habit
Clump-Forming
Oval or Rounded
Plant Size
Minimum Height
61.00 cm60.00 cm
0
3900
👆🏻
Minimum Width
25.40 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Crimson
Red
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Green
Green, Dark Green
Leaf Color in Summer
Green
Green, Dark Green
Leaf Color in Fall
Green
Green, Dark Green
Leaf Color in Winter
-
Green, Dark Green
Shape
Leaf Shape
Oblong
Linear
Thorns
✔
✘
✔
✘
Plant Season
Summer
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Fast
Medium
Type of Soil
Loam, Sand
Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic
Soil Drainage
Well drained
Well drained
Bloom Time
Early Summer, Summer, Late Summer
Early Spring, Spring, Late Fall, Winter, Late Winter
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
-
Where to Plant?
Ground
Ground
How to Plant?
Seedlings, Stem Planting
Seedlings, Stem Cutting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Do Not over Water, Requires watering in the growing season, Water Deeply, Water when soil is dry
Average Water Needs, Do not water frequently
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Acidic
Soil Type
Loam, Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
No pruning needed in the early stages, Prune to stimulate growth, Remove damaged leaves, Remove dead leaves, Remove deadheads
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, Apply 10-10-10 amount
All-Purpose Liquid Fertilizer, Apply N-P-K
Pests and Diseases
Insects
Caterpillars, Citrus leaf miner, Petal blight, Red blotch, Rust, Twig blight, Whiteflies
Plant Tolerance
Drought
Drought, Shade areas
Flowers
Showy
Showy
Flower Petal Number
Single
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Medium
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds
Onion thrips, White Pine Weevil
Allergy
Asthma
-
Uses
Aesthetic Uses
Showy Purposes
Bonsai, Cottage Garden
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Burns, Snakebite, Stomach aliments
Astringent
Part of Plant Used
Whole plant
Flowers, Leaves
Other Uses
Used as Ornamental plant
Repellent, used for making charcoal, Used for woodware
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Mixed Border, Rock Garden / Wall, Wildflower
Container, Feature Plant, Foundation, Mixed Border, Rock Garden, Wall, Topiary, Bonsai, Espalier
Botanical Name
PENSTEMON eatonii
RHODODENDRON 'Anthopogon'
Common Name
Firecracker Penstemon
Evergreen Azalea
In Hindi
Firecracker penstemon
Azalea
In German
Kracher penstemon
Azalee
In French
Firecracker penstemon
azalée
In Spanish
Penstemon del petardo
azalea
In Greek
πυροτέχνημα penstemon
αζάλεα
In Portuguese
Penstemon do foguete
Azalea
In Polish
petarda penstemon
azalia
In Latin
Firecracker Persicaria
Azalea
Kingdom
Plantae
Plantae
Phylum
-
Tracheophyta
Class
-
Magnoliopsida
Order
Lamiales
Ericales
Family
Scrophulariaceae
Ericaceae
Genus
Penstemon
Rhododendron
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
Rhodoreae
Subfamily
-
Ericoideae
Number of Species
2501024
1
27800
👆🏻